How to make subplots from following code?

Hi

I am using following way to subplot my figures but it is not working. How can I subplot my figures:

figure; subplot(121);
clf;surf(squeeze(X),squeeze(Z),squeeze(VES_base));view([0,90]);shading interp;grid on;set(gca,'YDir','reverse');colorbar

Unrecognized function or variable 'X'.

set(gca,'FontName','Times New Roman', 'fontsize', 20,'FontWeight','bold', 'linewidth', 3)
%ylim([1050 1800])
%xlim([5.55e5 5.675e5])
ylabel('Z (m)');
xlabel('X (m)');
colormap(jet) 

subplot(122);
clf;surf(squeeze(X),squeeze(Z),squeeze(Pef_base));view([0,90]);shading interp;grid on;set(gca,'YDir','reverse');colorbar
set(gca,'FontName','Times New Roman', 'fontsize', 20,'FontWeight','bold', 'linewidth', 3)
%ylim([1050 1800])
%xlim([5.55e5 5.675e5])
ylabel('Z (m)');
xlabel('X (m)');
colormap(jet) 

[Image Analyst]

Well, define X for one thing.

If you have any more questions, then attach your data and code to read it in with the paperclip icon after you read this:

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[Nisar Ahmed]

@Image Analyst Thanks, plz find the attached data.

Answer 1

[Voss]

Remove the calls to clf, which clear the figure.

load('XZP.mat')

figure; subplot(121);
surf(squeeze(X),squeeze(Z),squeeze(VES_base));view([0,90]);shading interp;grid on;set(gca,'YDir','reverse');colorbar
set(gca,'FontName','Times New Roman', 'fontsize', 20,'FontWeight','bold', 'linewidth', 3)
%ylim([1050 1800])
%xlim([5.55e5 5.675e5])
ylabel('Z (m)');
xlabel('X (m)');
colormap(jet) 

subplot(122);
surf(squeeze(X),squeeze(Z),squeeze(Pef_base));view([0,90]);shading interp;grid on;set(gca,'YDir','reverse');colorbar
set(gca,'FontName','Times New Roman', 'fontsize', 20,'FontWeight','bold', 'linewidth', 3)
%ylim([1050 1800])
%xlim([5.55e5 5.675e5])
ylabel('Z (m)');
xlabel('X (m)');
colormap(jet)